No Audio/ Normal Video - LG 42LB65 Series Service Manual

Standard Repair Process
Established
C. Audio error
2014.01.20
Error
date
LCD TV
symptom

No audio/ Normal video

Revised date 8/13
☞A24 ☞A25
Check user N Check audio B+ 24V Y
No audio
Normal
menu > Off of Power Board
Screen normal
voltage
Speaker Out
Y N
Cancel OFF Replace Power Board and repair parts
N
Check Speaker
Replace MAIN Board
Disconnection End
disconnection
Y
Replace Speaker
9
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